The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-265-3355, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 17 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-265-3355 |
| Primary Part Number | BM17019-6D32 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Fastener Length | 2.500 INCHES MINIMUM AND 2.547 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Width Between Flats | 0.564 INCHES MAXIMUM IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.375 INCHES MINIMUM AND 2.432 INCHES MAXIMUM FIRST HOLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 109453-6D32 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M453-6D32 | Houston Precision Fasteners I Lp (USA) |
| ST3M453-6D32 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M453-6D32 | Howmet Global Fastening Systems Inc (USA) |
| ST3M453-6D32 | Heartland Precision Fasteners Inc (USA) |
| WC453-6D32 | West Coast Aerospace, Inc. (USA) |
| VAL23029-6D32 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GS1016-6D32 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| S11-1060-6D32 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| AIC753-6D32 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| MB61-6D32 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| SLB252-6D32 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| MB61-6D32 | Hi-Shear Corporation (USA) |
| PBF1253-6D32 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BM17019-6D32 PRIMARY | Huck International, Inc (USA) |
| ST3M453-6D32 | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| 11825-6D32 | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| BM17019-6D32 | 5/9 Secondary reference U.S. Government activity |
| KS3020-6D32 | 5/9 Secondary reference Kenaloy Products Inc Sub Masco Corp |
| VAL23029-6D32 | 5/9 Secondary reference U.S. Government activity |
| 109453-6D32 | 5/2 Secondary reference U.S. Government activity |
| MA5453-6D32 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| ST3M453-6D32 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| S353-6D32 | 5/9 Secondary reference U.S. Government activity |
| ST3M453-6D32 | 5/9 Secondary reference Kenaloy Products Inc Sub Masco Corp |
NSN 5306-01-265-3355 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-265-3355 has 17 manufacturer part numbers on file: 109453-6D32 (Sps Technologies, Llc Dba PB Fasteners), ST3M453-6D32 (Houston Precision Fasteners I Lp), ST3M453-6D32 (Fastener Innovation Technology, Inc. Dba F I T), ST3M453-6D32 (Howmet Global Fastening Systems Inc), ST3M453-6D32 (Heartland Precision Fasteners Inc) and 12 more.
Key specifications for BM17019-6D32: Head Height: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN; Fastener Length: 2.500 INCHES MINIMUM AND 2.547 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.